I used these resources when researching the annotations for this fairy tale. Most should be available through your local library, but I have included links to the titles on Amazon.com for further reading.
Altman, Anna E. and Gail de Vos. Tales, Then and Now: More Folktales As Literary Fictions for Young Adults. Englewood, CO: Libraries Unlimited, 2001.
Amazon.com: Buy the book inpaperback.
Anderson, Graham. Fairytale in the Ancient World. London: Routledge, 2000.
Amazon.com: Buy the book in hardcoverorpaperback.
Ashliman, D. L. A Guide to Folktales in the English Language. New York: Greenwood Press, 1987.
Amazon.com: Buy the book inhardcover.
Luthi, Max. Once Upon a Time: On the Nature of Fairy Tales. Bloomington, IN: Indiana University Press, 1976.
Matthews, Borg, trans. The Herder Symbol Dictionary. Wilmette, IL: Chiron Publications, 1986.
Miller, Gustavus Hindman. The Wordsworth Dictionary of Dreams. Ware, Hertfordshire: Wordsworth Editions, 1994.
Mueller, Gerhard O. W. "The Criminological Significance of the Grimms' Fairy Tales." Fairy Tales and Society: Illusion, Allusion, and Paradigm. Ruth Bottigheimer, editor. Philadelphia: University of Pennsylvania Press, 1986. 217-227.